1239226025 has 24 divisors (see below), whose sum is σ = 1577232384. Its totient is φ = 965289600.

The previous prime is 1239226013. The next prime is 1239226091. The reversal of 1239226025 is 5206229321.

It is not a de Polignac number, because 1239226025 - 2³⁰ = 165484201 is a prime.

It is a super-2 number, since 2×1239226025² = 3071362282074601250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1239225982 and 1239226000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744344 + ... + 746006.

It is an arithmetic number, because the mean of its divisors is an integer number (65718016).

Almost surely, 2^1239226025 is an apocalyptic number.

It is an amenable number.

1239226025 is a deficient number, since it is larger than the sum of its proper divisors (338006359).

1239226025 is a wasteful number, since it uses less digits than its factorization.

1239226025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1239226025 is about 35202.6423013955. The cubic root of 1239226025 is about 1074.1135002641.

The spelling of 1239226025 in words is "one billion, two hundred thirty-nine million, two hundred twenty-six thousand, twenty-five".